Commonly, a voucher is a document that shows goods have bought or services have been rendered, authorizes payment, and indicates the ledger account(s) in which these transactions have to be recorded.
It was the first product in a major class of drugs for depression called selective serotonin reuptake inhibitors. Prozac was first introduced to the U.S. market in January 1988, and it gained its most prescribed status within two years.
Prozac was 1 of the first drugs I tried for depression. I had some insomnia at first but it gradually lessened. Prozac started working for me within the first 3-4 weeks. However, it was found that I had secondary insomnia to the depression.